Theme | Usability Issue | Heuristic | Number of participants reporting the issue (n = 9) |
---|---|---|---|
Incomplete functionality | Some weird characters, unreadable Unicode characters | Reduce uncertainty | 1/9 |
There are two across signs work the same way, one of them should be modified | Reduce uncertainty | 1/9 | |
Two graphs in the same page separate too far away | Reduce uncertainty | 1/9 | |
Can not read the full text content of some questions | Reduce uncertainty | 1/9 | |
Can not read the full name on the circles | Reduce uncertainty | 1/9 | |
Lack of functionality | Users can not hide information after they have looked at them | Include in the displays only that information needed by the user at a given time | 1/9 |
Users can not remember the question they asked | Reduce uncertainty | 2/9 | |
Don’t know how to start to use the system | Reduce uncertainty | 2/9 | |
Expect more information when hovering on nodes | Practice judicious redundancy | 1/9 | |
No alert message for error or null value | Reduce uncertainty | 2/9 | |
Questions should be able to start from everywhere (products, ingredient, etc.) | Provide multiple coding of data when appropriate | 1/9 | |
Users need go through every circle to figure out the anwser of a question | Group data in consistently meaningful ways | 1/9 | |
URL is fixed, users can not return to the previous page | Automate unwanted workload | 1/9 | |
Lack of information | No sufficient information for some relationships(like “effects_on”, need more details) | Provide multiple coding of data when appropriate | 1/9 |
Unclear information presentation | Links overlap and relationships are hard to be read | Reduce uncertainty | 1/9 |
Nodes’ font is difficult to be read | Reduce uncertainty | 2/9 | |
Small finder icon, it is hard for user to notice it | Present new information with meaningful aids to interpretation | 1/9 | |
Unintuitive information | Questions are not easy for laypeople to understand | Present new information with meaningful aids to interpretation | 1/9 |
Unnecessary information | Preferred names and scientific names are unnecessary nodes | Fuse data | 1/9 |
Redundant information for some questions’ results | Include in the displays only that information needed by the user at a given time | 2/9 | |
Show too much information without limitation | Include in the displays only that information needed by the user at a given time | 3/9 | |
Unnecessary information (Number in the parentheses) in right column | Include in the displays only that information needed by the user at a given time | 1/9 | |
Unnecessary information (UMLS Semantic Type) in right column | Include in the displays only that information needed by the user at a given time | 1/9 |